Turn off search indices for lighter redis connection usage

https://github.com/LearnBoost/kue/issues/366#issuecomment-48804594
Each .createQueue(...) creates two connections (one shared for producers/consumers + one for subscribing to events channel) in every node process if search indexing is off.
and each worker TYPE creates another connection for a PLPOP operation on that job type. This way your code should be creating 7 connections. Can you verify this on your redis side.

So all you can do is:
1) turn search indexes off to avoid extra redis connections for index management
2) reduce your nodejs processes using kue
3) limit your worker types by design